Geologists: scientists who study the forces that make and shape the earth Geology: the study of planet Earth constructive forces: forces that build up landmasses like mountains destructive forces: forces that slowly wear away mountains and surface such as what an ocean does continents: seven large landmasses on earth seismic waves: waves that move through the Earth's interior pressure: force pushing on a surface or area crust: layer of rock that makes up the Earth's outer skin basalt: dark, dense rock that forms the oceanic crust granite: rock with larger crystals that is less dense than basalt and makes up the continental crust mantle: layer of hot rock below the crust lithosphere: means "stone" and is the mantle and crust together asthenosphere: means "weak" soft rock material that can flow slowly outer core: layer of molten metal that surrounds the inner core inner core: dense ball of solid metal
Outline
Science of Geology
studying surface changes
surface always changing
finding indirect evidence
cannot see inside earth
use seismic waves
speed of waves tells the material
Center of the Earth
temperature
surface rock is cool
20 meters/warmer
every 40 meters 1 degree celsius hotter
boy that's hot
pressure
deeper you the greater the pressure
The crust
continental
granite
light colored rock
oceanic
basalt
The mantle
Made of Upper Mantle
lower half of Lithosphere, rigid
And Lower Mantle
upper half of asthenosphere, flowing
The core
Made up of outer and inner core
Outer core
liquid magma
Inner core
dense metal
Earth's magnetic field
Caused by spinning of inner core which is caused by the outer core
Table of Contents
1.1 Earth's Crust in Motion
Vocabulary
Geologists: scientists who study the forces that make and shape the earth
Geology: the study of planet Earth
constructive forces: forces that build up landmasses like mountains
destructive forces: forces that slowly wear away mountains and surface such as what an ocean does
continents: seven large landmasses on earth
seismic waves: waves that move through the Earth's interior
pressure: force pushing on a surface or area
crust: layer of rock that makes up the Earth's outer skin
basalt: dark, dense rock that forms the oceanic crust
granite: rock with larger crystals that is less dense than basalt and makes up the continental crust
mantle: layer of hot rock below the crust
lithosphere: means "stone" and is the mantle and crust together
asthenosphere: means "weak" soft rock material that can flow slowly
outer core: layer of molten metal that surrounds the inner core
inner core: dense ball of solid metal
Outline
Science of Geology
Center of the Earth
The crust
The mantle
The core
Earth's magnetic field
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